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Finding the Fourth Proportional to 243,250.35, 335,685.36 and 135,820.32

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Solution

The fourth proportional to 243,250.35, 335,685.36 and 135,820.32 is: 187,431.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,250.35 : 335,685.36 = 135,820.32 : x
  2. Step 2: Convert to fraction form
    243,250.35/335,685.36 = 135,820.32/x
  3. Step 3: Cross multiply
    243,250.35x = 335,685.36 × 135,820.32
  4. Step 4: Simplify right side
    243,250.35x = 45,592,893,014.52
  5. Step 5: Solve for x
    x = 45,592,893,014.52/243,250.35
  6. Step 6: Final answer
    x = 187,431.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.